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2XXX 7XXX METHOD FOR RECYCLING SCRAP OF 2XXX OR 7XXX SERIES ALLOYS
2XXX 7XXX METHOD FOR RECYCLING SCRAP OF 2XXX OR 7XXX SERIES ALLOYS
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机译：用于回收2XXX或7XXX系列合金废料的2XXX 7XXX方法
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摘要
The present invention relates to a process for producing an aluminum alloy ingot using an aluminum alloy ingot of 2XXX or 7XXX series, comprising: (i) obtaining scrap of an aluminum alloy of the series 2XXX or 7XXX; (ii) Separating the oil present on the scrap, (iii) subjecting the scrap to a first treatment with a first liquid at a temperature of at least 10 ° C, which is an aqueous solution having a pH of 1 to 5 or a pH of 8 to 13, (iv) subjecting the first liquid and the treated scrap to (v) performing at least one second treatment of the scrap with the second liquid, and (vi) (Vii) melting the obtained scrap, (viii) performing a first coagulation to the raw intermediate form, and (ix) casting an aluminum alloy ingot of the series of scrap used. Manufacturing method . The present invention also relates to a method of rolling, extruding and / or forging an aluminum alloy ingot of a series of scraps used, in addition to the steps of the method, comprising at least one step of rolling, extruding and / And a method for producing the same.
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